Having just done a leg in F on both EK and QF, I have to say I was disappointed with EK. Despite a 6 hour delay in Sydney (QF1 on 10 Aug), and having a glass of champagne tipped on me (it was Tattinger!) I thought the QF seat seemed roomier, and with the sheepskin mattress, was a dream to sleep on. The food was better quality, although dine on demand would be a positive improvement for QF. The main downsides to QF is the lack of shower, and the lack of doors on the suites. For me though, the biggest difference was the cabin crew. The three serving F on my flight could not do more for me, were happy to have a chat and interact with passengers, rather than the cold, impersonal yet professional service of the EK crew. There is a chance if was just and ordinary flight on EK, but I have both legs on EK coming back, so will be able to get a much better picture of the EK product.
Of course First is First, and both products are still very good, and it could be worse, I could be in Y!